mcwhirter



'(No Model.) 3 Sheets-Sheet 1.

B. MGWHIRTER.

LOUOMOTIVE GEARING.

No.448,160. Patented Ma 10, 1891.

(No Model.) 3 Sheets-SheetB. R. B. MoWHIRTER.

LOGOMOTIVE GEARING.

No. 448,160. PatentedMar. 10, 1891.

arnnr Oriana.

ROBERT B. MOIVHIRTER, OF LIMA, OHIO, ASSIGNOR OF ONEFOURTII TO JOHN Y.BURGOYNE, OF SAME PLACE.

LOCOMOTlVE -GEARING.

SPECIFICATION forming part of Letters Patent No. 448,160, dated March10, 1891.

Application filed December 9, 1890.

To all whom it may concern.-

Be it known that I, ROBERT E. MOIVHIR- TER, a citizen of the UnitedStates, residing at Lima, in the county of Allen and State of Ohio, haveinvented certain new and useful Improvements in Locomotive-Gearing; andI do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to an improvement in gearing for locomotives, itsobject being to produce a system of gearing by means of which motion maybe transmitted to the driving-wheels, and which will compensate for anyirregularities of the movements of the truck carrying saiddriving-wheels.

A further object is to provide a locomotive with gearing fortransmitting motion to the driving-wheels, which gearing shall compriseacomparatively small number of parts and the arrangement of which shallbe compact.

A further object is to produce gearing for a locomotive which shall beof simple con struction, effective in operation, and capable ofapplication to engines now in use.

Vith these objects in view the invention consists in certain novelfeatures of construction and combinations and arrangements of parts, ashereinafter set forth, and pointed out in the claims.

In the accompanying drawings, Figure l is an elevation of a locomotivehaving my improvements applied thereto. Fig. 2 is a detail Viewillustrating the manner of connecting the line-shaft with the main orcrank shaft. Fig. 3 is a view illustrating the manner of connecting thelineshaft with the truck crank-shaft. Fig. l is a view, partly insection, illustrating the truck crankshaft and gearing mounted thereon.Fig. 5 is a detached view of the connection between the line-shaft andtruck crank-shaft, part of said connection being removed.

A represents a locomotive, and B the main frame thereof, having thecylinders O located on the outside of the latter and provided with theusual pistons and piston-rods C. Lecated rearwardly from the cylinders Ois a Serial No. 374,092. (No model.)

crank-shaft D, having a crank-arm or disk at the end thereof, whichcrank-arm or disk is connected by a pitman D with the pistonrod 0 in anypreferred manner. Mounted on the crank-shaft D is a yoke or frame E,preferably of oval or elliptical form, and projecting into the yoke orframe E is an integral boss'E, having a socket or recess E for thereception of one end of a bushing F, the other end of said bushingextending into a perforated enlargement F in the opposite side of theframe or yoke E from the socketed boss E. Surroundingor mounted upon thebushing F is the hub G of a pinion G, said pinion being adapted to meshwith a pinion G on the main crank-shaft D. Extending into the bushing Fand having a free longitudinal movement therein is the upper end of aline-shaft H. The line-shaft His provided at its upper end with alongitudinal groove a, and aligning with this groove slots are out inthe bushing F and hub G of pinion G for the reception of a pin or screw,which latter is adapted to enter the groove ct, and thus cause thepinion G and line-shaft II to rotate together, but permit the lineshaftto have a longitudinal movement independent of the pinion, for a purposepresently explained. At its lower end the line shaft is journaled inbearingsb c in a yoke or frame I, and keyed to said line-shaft withinsaid yoke I is a pinion J. In proximity to the lower end of theline-shaft I a crankshaft K is mounted in the truck Ii. point betweenits ends the shaft K is provided with an enlargement (Z, havinga socketor perforation d, and mounted on this enlargement (Z and secured by apin or key passing into the socketor perforation d is a hub or sleeve M,having a portion d adapted to embrace the enlargement (Z, and a portion6 adapted to project parallel with the shaft K. Projecting from theportion (Z of the sleeve M is a flange 6', to which a pinion N issecured and adapted to mesh with the pinion J on the line-shaft I. Theportion 6 of the sleeve M is provided at its free end with a flange 6and encircling the portion a of the sleeve M and the shaft K is a sleeveor collar 0, having an elongated opening, as

shown in Fig. 3, said sleeve or collar 0 being made integral with theyoke or frame I. Fromthis construction it will be seen that when thewheels of the truck move slightly from the track, as they frequently do,or when the trucks are moved backward or forward from any cause, theline-shaft I, having a longitudinal movement, as above explained, suchirregular movement of the truck will be compensated for, and there willbe no strain upon the parts. At the end of the shaft K a crank-arm P issecured and connected to the center of a pitman Q, which latter isconnected at its ends to the drive-wheels of the locomotive, whereby themotion of the crankshaft I will be transmitted to the wheels.

Thus far I have described the mechanism as applied for propelling theforward drivingwheels; but it is evident that motion may also beimparted to the rear driving-wheels of the locomotive from the maincrank-shaft -D by means of mechanism identical with that alreadydescribed.

It is evident that slight changes might be made in the details ofconstruction of my invention without departing from the spirit thereofor limiting its scope.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a locomotive, the combination, with the main frame and the wheels,of a main crank-shaft mounted in the main frame, a pinion on saidcrank-shaft, a crank-shaft mounted on the truck, a pinion on said truckcrank-shaft, and a line-shaft carrying a pinion at each end adapted tomesh with the pinions on the crank-shafts, and a pitman connected to thewheels and the truck crankshaft, substantially as set forth.

2. In a locomotive, the combination, with the main frame and the truckand wheels, of a crank-shaft mounted in the main frame, a crank-shaftmounted in the truck, and a lineshaft adapted to transmit motion fromthe main crank-shaft t0 the truck line-shaft, said line-shaft beingadapted to have longitudinal movement to compensate for theirregularities in movement of the wheels, substantially as set forth.

In a locomotive, the combination, with the main frame and the front andrear trucks carrying wheels, of a main crank-shaft, pinions thereon, acrank-shaft on the trucks, a pinion on each truck crank-shaft, pitmen'connectin g the wheels of each truck and connected to the truckcrank-shafts, and lineshafts carrying pinions adapted to mesh with thepinions on the main crank-shaft and the truck-shafts, substantially asset forth.

4. In a locomotive, the combination, with the main frame, truck, andwheels, of a main shaft on the main frame, a pinion on said main shaft,a crank-shaft on the truck and connected with the pitman on thedrivingwheels, a pinion on the truck crank-shaft, a yoke or framemounted on the main shaft, a

' pinion mounted in said yoke or framc,a lineshaft having a slidingbearing in said frame or yoke and adapted to rotate with the piniontherein, and a pinion on the other end of said line-shaft adapted tomesh with the pmi'on on the truckcrank-shaft, substantially as setforth;

5. In a locomotive, the combination, with the main frame, truck, andwheels, of a main shaft on the main frame, a pinion on said main shaft,a crank-shaft on the truck and connected with the pitman of thedrivingwheels, a pinion on the truck crank-shaft, a yoke or framemounted on the main shaft, a bushing mounted in said yoke or frame, apinion in the yoke or frame and connected with said bushing, aline-shaft in said bushing, said line-shaft being adapted to have asliding or longitudinal movement in the bushing and to rotate with itand the pinion, and a pinion on the other end of the shaft, adapted tomesh with the pinion on the truck crankshaft, substantially as setforth. 6. In a locomotive, the combination, with the main frame, thetruck, and the wheels, of a shaft on the main frame, a pinion on saidshaft, a crank-shaft on the truck, connected with the pitman of thedriving-wheels,a pinion on said truck crank-shaft, a frame or yokemounted on the main frame, a pinion mounted in said yoke or frame andmeshing with the pinion on the main shaft, a yoke or frame mounted onthe truck crank-shaft, a pinion in said yoke or frame and adapt-ed tomesh with the pinion on the truck crank-shaft, and

a line-shaft connecting said yokes or frames mounted in the truck, ayoke or frame loosely connected with said truck crank-shaft, and aline-shaft connecting said yokes or frames, said crank-shaft carrying apinion within one of said yokes or frames and adapted to mesh with thepinion on the truck crank-shaft, the other end of said line-shaftbeingadapted to rotate with the pinion in the other yoke or frame and have alongitudinal movement independent thereof, substantially as set forth.

8. In a locomotive, the combination, with a main frame and a truck andwheels, of a main shaft, a pinion thereon, a line-shaft carrying apinion to mesh with the pinion on the main shaft, a crank-shaft on thetruck, a pinion on said truck crank-shaft, a yoke or frame havingbearings for the end of the line-shaft, a pinion secured to theline-shaft within said yoke or frame, and a sleeve 0r collar adapted toloosely encircle the truck crankshaft, substantially as set forth.

9. In a locomotive, the combination, with the main frame,truck, andwheels, of a main 1 line-shaft, and a pinion on the main shaft, shaft, acrank-shaft mounted on the truck i with which the latter-mentionedpinion is and having an enlargement between its ends, adapted to mesh,substantially as set forth.

a sleeve keyed to said enlarged portion, a In testimony whereof I havesigned this ['5 flange projecting from said sleeve, a pinionspecification in the presence of two subscribsecnred to said frame, ayoke or frame having witnesses. ing a collar or sleeve to looselyembrace the sleeve on the crank-shaft, a pinion in said yoke or frame, aline-shaft secured to said pinion and having its bearings in said yokeor frame, a pinion at the other end of the ROBERT B. MOW HIRTER.

JOHN B. ICSMAN,

Witnesses:

1 Tools E. FEIGHTNER.

